代码之家  ›  专栏  ›  技术社区  ›  Namratha

如何将下拉菜单创建为新活动

  •  2
  • Namratha  · 技术社区  · 16 年前

    如何创建一个新的下拉菜单 Activity .

    按钮支架是否拉出?如果不是,那是什么?

    2 回复  |  直到 15 年前
        1
  •  2
  •   Community Mohan Dere    9 年前

    我想我也有同样的问题。为了更好的理解,我在这里描述了一张图片。我希望你们能给我和纳姆拉塔一些帮助。。。

    alt text

    (哦,我刚刚注意到,图片上传者把我在图片中的文字搞乱了。它应该说“我想建立一个下拉菜单到我的应用程序。它应该像这个例子一样工作。”)

    乳突

    出于某种原因,我总是在Eclipse布局预览中遇到以下错误:

    java.lang.IllegalArgumentException: The handle attribute is required and must refer to a valid child.
        at android.widget.SlidingDrawer.<init>(SlidingDrawer.java:204)
        at android.widget.SlidingDrawer.<init>(SlidingDrawer.java:181)
        at sun.reflect.GeneratedConstructorAccessor204.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at android.view.LayoutInflater.createView(LayoutInflater.java:499)
        at android.view.BridgeInflater.onCreateView(BridgeInflater.java:77)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:562)
        at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:122)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:617)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:296)
        at com.android.layoutlib.bridge.Bridge.computeLayout(Bridge.java:377)
        at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.computeLayout(Unknown Source)
        at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.recomputeLayout(Unknown Source)
        at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.activated(Unknown Source)
        at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditor.pageChange(Unknown Source)
        at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:290)
        at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
        at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187)
        at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2743)
        at org.eclipse.swt.custom.CTabFolder.destroyItem(CTabFolder.java:500)
        at org.eclipse.swt.custom.CTabItem.dispose(CTabItem.java:126)
        at org.eclipse.ui.part.MultiPageEditorPart.removePage(MultiPageEditorPart.java:1039)
        at org.eclipse.ui.forms.editor.FormEditor.removePage(FormEditor.java:368)
        at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditor.showEditorInput(Unknown Source)
        at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2847)
        at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
        at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
        at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
        at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
        at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682)
        at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
        at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
        at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:365)
        at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:168)
        at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229)
        at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208)
        at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
        at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
        at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:49)
        at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)
        at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185)
        at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
        at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:845)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
        at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
        at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
        at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:843)
        at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1131)
        at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462)
        at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1235)
        at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264)
        at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258)
        at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
        at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
        at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
    

    这就是布局xml。我刚刚删除了可绘制的资源指针。。。

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/LinearLayoutTesting"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:orientation="vertical"
      android:gravity="bottom">
      <SlidingDrawer
        android:layout_width="wrap_content"
        android:id="@+id/SlidingDrawer"
        android:handle="@+id/slideHandleButton"
        android:content="@+id/contentLayout"
        android:padding="10dip"
        android:layout_height="250dip">
        <Button
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:id="@+id/slideHandleButton"></Button>
        <LinearLayout
          android:layout_width="wrap_content"
          android:id="@+id/contentLayout"
          android:orientation="vertical"
          android:gravity="center|top"
          android:padding="10dip"
          android:background="#C0C0C0"
          android:layout_height="wrap_content">
          <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Content"></Button>
          <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Content"></Button>
          <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Content"></Button>
        </LinearLayout>
    
      </SlidingDrawer>
    
    </LinearLayout>
    

    更新2

    better solution 为了我。因为SlidingDrawer小部件只支持从下到上滑动。我第一次的错误 更新 仍然存在。

        2
  •  0
  •   Janusz Daniel Rindt    15 年前

    用于这种布局的小部件是 Sliding Drawer